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中国沙漠 ›› 1995, Vol. 15 ›› Issue (4): 339-344.

• 论文 • 上一篇    下一篇

全新世气候适宜期黄土高原及黄土/沙漠过渡区年降水量的初步恢复

孙东怀1, 周杰1, 吴锡浩2, S. C. Porter3   

  1. 1. 中国科学院西安黄土与第四纪地质研究室, 西安 710061;
    2. 地矿部地质力学研究所, 北京 100081;
    3. 美国华盛顿大学第四纪中心
  • 收稿日期:1995-02-24 出版日期:1995-12-20 发布日期:1995-12-20
  • 基金资助:
    国家自然科学基金资助项目(4923001,49473192)

PRELIMINARY RECONSTRUCTION OF ANNUAL RAINFALL IN LOESS PLATEAU AND LOESS-DESERT TRANSITIONAL REGIONS IN SUITABLE CLIMATIC PERIOD OF HOLOCENE

Sun Donghui1, Zhou Jie1, Wu Xihao2, S. C. Porter3   

  1. 1. Xian Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xian, 710061;
    2. Institute of Geomechanics, Ministry of Geology and Minerals, Biejing, 100081;
    3. Quaternary Center, Washington University
  • Received:1995-02-24 Online:1995-12-20 Published:1995-12-20

摘要: 通过黄土高原及其临区104个地点地表土壤磁化率值与当地的现代多年平均降水量的回归分析,建立了磁化率与降水量的转换函数。在遍布黄土高原不同地区典型的全新世黄土-古土壤剖面磁化率测量的基础上,利用所建立的转换函数,初步恢复了全新世气候适宜期,黄土高原及黄土/沙漠过渡区年降水量的分布状况。

关键词: 全新世, 古气候要素, 磁化率, 黄土

Abstract: Through regression analysis on the magnetic susceptibilities of surface soils taken from 104 locations in loess plateau and adjacent areas and the contemporary multi-yaer mean rainfall,a susceptibility-rainfall conversion function was established. Based on the determination of susceptibilities of typical Holocene loess-paleosol profiles in different areas of the loess plateau and using the conversion function established, the suitable climatic period of Holocene and the rainfall distribution of the loess plateau and loess-desert transitional areas were preliminarily reconstructed.

Key words: Holocene, Paleoclimatic element, Susceptibility, Loess